Aflatoxins are mycotoxins that are generated as a result of secondary metabolism of various fungal species such as Aspergillus, Penicillium and Fusarium.

Aflatoxin G₁ may be used as an analytical reference standard for the determination of aflatoxin G₁ in: Animal feed by high performance liquid chromatography with fluorescence detection (HPLC-FLD), as well as quick, easy, cheap, effective, rugged and safe (QuEChERS) extraction method combined with ultra-high performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS). Eggs by QuEChERS extraction method followed by analysis using UHPLC with tandem mass spectrometry (MS/MS) operating on electrospray ionization interface (ESI) mode. Brazil nuts by immunoaffinity column (IAC) clean-up and HPLC-FLD. Plant-based milk and dairy products by dispersive liquid-liquid microextraction (DLLME), QuEChERS extraction method and HPLC-FLD.